Volkswagen New Beetle. Manual - part 1632

 

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Volkswagen New Beetle. Manual - part 1632

 

 

Fig. 118: Identifying HO2S -G130- Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Wire resistance: Max. 1.5 ohm 

z

Check wiring at connector terminals 3 + 4 for short circuit to terminals 1 + 2 using Electrical Wiring 
Diagram. 

z

terminal 4 and socket 68  

Specification: INFINITY ohm 

If no wiring malfunction is found: 

z

Replace Motronic Engine Control Module (ECM) -J220-, see MOTRONIC ENGINE CONTROL 
MODULE (ECM) - J220-, REPLACING
 .  

Oxygen sensor aging, oxygen sensor before Three Way Catalytic Converter (TWC), checking 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Special tools, test equipment and auxiliary items 

z

VAG 1551 scan tool or VAG 1552 mobile scan tool with VAG 1551/3B cable  

z

VAG 1788/10 RPM adjuster 

Fig. 119: Identifying Special Tool 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Test conditions 

z

Engine Coolant Temperature (ECT) must be at least 80 °C, see display group 04, display zone 3  

Functional check 

z

Connect VAG 1551 scan tool (or VAG 1552). Start engine and select "Address word" 01 of Motronic 
Engine Control Module (ECM) -J220-. Engine must be running at idle speed. Connecting scan tool and 
selecting Motronic Engine Control Module (ECM) - J220-, see VAG 1551, CONNECTING AND 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

SELECTING MOTRONIC ENGINE CONTROL MODULE (ECM) -J220- . 

Indicated on display 

Fig. 120: Identifying Scan Tool Display - Checking Aging, HO2S Before TWC (1 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press buttons -0- and -4- for function "Basic Setting" and confirm entry with -Q- button. 

Indicated on display 

Fig. 121: Identifying Scan Tool Display - Checking Aging, HO2S Before TWC (2 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press buttons -0-, -3- and -4- for "Display group number 34" and confirm entry with -Q- button. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Indicated on display (1 to 4 - Display zones)

Fig. 122: Identifying Scan Tool Display - Checking Aging, HO2S Before TWC (3 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Adjust RPMs with VAG1788/10 RPM adjuster to 1800 to 2200RPM.  

z

Check specifications in display zones 1 to 4.  

z

Maintain engine speed at 1800...2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test 
ON". Three Way Catalytic Converter (TWC) temperature in display zone 2 must be 350 to 500 °C  

z

Continue to maintain speed at 1800...2200 rpm until specification "B1-S1 OK" appears in display zone 4. 

OXYGEN SENSOR CONTROL SPECIFICATION 

 

Display zones

1

2

3

4

Display group 34: Oxygen sensor aging diagnostic Bank 1 (sensor dynamics)
Display

xxxx 

RPM

xxx.x °C

xx.xx

Test OFF/Test ON B1-S1 

OK/B1-S1 n.OK

Indicated

Engine 

speed (in 

steps of 

40)

Three Way 

Catalytic 

Converter (TWC) 

temperature

Sensor dynamics Bank 1 

oxygen sensor 1

Diagnostic condition and 

diagnostic result

Working 
range

0 to 6800 

RPM

-

0.00 to 1.99

-

Specifications

1800 to 

2200 

RPM

350 to 500 °C

> 0.50

B1-S1 OK.

-

-

If the specifications are not obtained, see 

OXYGEN SENSOR AGING, OXYGEN 

SENSOR AFTER THREE WAY 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

 

 

 

 

 

 

 

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